EUVD-2026-67921
GHSA-6vvj-95pg-p2j8
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network POST to the CGI endpoint (AV:N/AC:L/PR:N/UI:N) but the only disclosed data is the admin username, so C:L and no integrity or availability impact.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getPasswordCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain the administrative username via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Information disclosure in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote unauthenticated attackers retrieve the administrative account username by sending a crafted POST request to the getPasswordCfg handler of /cgi-bin/cstecgi.cgi. The flaw is reported by MITRE with no public exploit identified at time of analysis and a low EPSS score (0.18%, 7th percentile); it is not listed in CISA KEV. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network access to the TOTOLINK T6 web management service on firmware 4.1.5cu.748_B20211015 and the ability to POST to the /cgi-bin/cstecgi.cgi endpoint invoking the getPasswordCfg function; no authentication, credentials, or user interaction are needed (CVSS PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are mixed and warrant scrutiny. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version is identified at time of analysis; check the TOTOLINK download page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for a firmware build newer than 4.1.5cu.748_B20211015 and apply it once published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all TOTOLINK T6 routers on your network and immediately restrict external access to router administrative ports using firewall rules. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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